Question about 2001 Chevrolet Blazer

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I have a 1999 Chevy Blazer 4dr with 4x4 recently I have noticed that when I accelerate there is a loud rattling coming from th underside of my truck, it also happens while I'm at a stop, and still in drive, when I shift to park the rattleing dulls but never goes away. What could the problem be?

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It could be the catalytic converter. While vehicle is off and parking brake on, go under the vehicle while it is cool and tap on the exhaust. See if the noise doesnt sound the same as you tap where the exhaust goes into the bigger section by the transmission.

Posted on Nov 05, 2010

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Posted on Jan 02, 2017

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